Device for increasing the vertical and lateral stiffness at the point of juncture of the ends of railroad-rails.



No. 746,072. PATENTED mac. a, 1903.

' J. Mumswom. DEVICE FOR INCREASING THE VBRTIGAL AND LATERAL STIFFNESS AT THE POINT OF JUNGTURE OFTHB ENDS 0F RAILROAD RAILS. APPLIOATIOH I'ILBDIAB. 28, 1903.

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No. 746,072. r

UNITE STAT S Patented December 8, 1903, a

PATENT OFFICE.

JOSEPH, M. GRISWOLD, OF DETROIT, MICHIGAN.

DEVICE FOR INCREASING THE VERTICAL AND' LATERAL STIFFNESS AT THE POINT OFJUNCTURE OF THE ENDS OF RAILROAD-RAILS.

SPECIFICATION forming part of Letters Patent N 0. 746,072, dated De ember 1903- Applioation filed March 28, 1903. serial No. 150,075. LNo model.)

To all whom it may concern:'

a citizen of the United States, residing at the city of Detroit, in the county of Wayne and Stateof Michigan, have inventedinetv and useful Designs to Increase the Vertical and Lateral Stiffness at the Point of Juncture of the Ends of Railroad-Rails, of which the following is a specification.

My invention relates to the equalization of the resistance and maintaining a uniform strength of track at the point of juncture of rails, securing evenness or level thereof when I utilize the spaces at the ends of rails on each side of the web usually occupied by fish-plates by constructing the ends of rails solid,upon lines drawn from the tread to the base thereof, and by combining the metal weight of fish-plates and as much more asI can use into a beveled inner rail of several feet in length, aided by a plain iron bed of length sufficient to rest uponseveral ties as usually laid, upon which said inner rail shall rest, so that the bed or plate and the inner rail can receive the support of the strongest foundation structure of ties and gravel attainable. Grooves in the ends of rails receive and engage the said inner rail. I use no fish-plates or bolts and nuts. I attain these objects by mechanism illustrated in the accompanying drawings, in which.

Figural represents the configuration of the ends of rails as proposed. Figs. 2 and 3 show the ends of two rails before beingjoined; Fig. 4, the intermediate or inner rail resting upon its plate-base. Fig. 5 is a perspective View when all the parts are in position.

The intermediate or inner rail 6 is designed to make a metal connection under the tread or face of the rails of sufficient length and size, aided by the base-plate d, to secure an equal tie and ground support to make the metal stiffness and strength at the point of juncture of the rails equal to the stiifness and strength of any other part of the track. In rails with a six-inch base and six inches from base to tread the inner rail is to have at least a four-inch base and beveled upward parallel to the outside lines of the ends of the rails drawn from their base to the treads thereof and three to three and one-half inches in line toward the treads, said inner rail to be made correspondingly in different sizes of rails.

The base-plate d is to be approximately one inch in thickness and bedded into the ties and of sufficient length and width to get the desired support from the ties and with ample room for spike-holes on both sides of rails, as may be desired. This base-plate d may be independent of the inner rail 6 or joined to it.

The ends of the rails are to be constructed in width flush with lines drawn from their base on both sides to their treads and exside of the grooves acting as outside webs support in lateral position the inner rail 6 and with sufficient indentations to receive the holding-spikes, which spikes would also pass through the base-plate d, and thus join and hold the rails and base-plate d together.

- Theshort flanges b b at the immediate point of juncture of rails are'designed to assist in holding the rails in line and are made integral with the base-plate d or may be omitted altogether, relying exclusively upon the spikes to effect that object.

The combination of the intermediate or inner rail 6 firmly with the grooves a a, resting upon the plate-base d, with a tie and ground support for a foundation, is relied upon to produce the vertical and lateral strength and stifiness sought, and the inner rail held in place by the sidewebs properlyspiked through the base-plate will add to the utility of the combination.

The slots 1) b on the side ends of the rail, Fig. 2, are designed to receive and engage the tongues c c of Fig. 3 and are intended to aid in the general purpose and to hold the curity against misplaceinent from accident, neglect, or design.

The lines 2' 2', Figs. 2 and 3, indicate the point Where the rails begin to take their ordinary form.

This inner or intermediate rail e, combined with the base-plate, make a metal Weight and strength at the point of juncture equal to that of any other point in the track. This inner rail and plate is to have and must have suflicient length to have placed under them a foundation-sustaining support as if there was nothing else in the space they occupy than the said inner rail 6 and base-plate, the tread of the rails having no vertical or lateral cohesion or strength, but resting for support upon and held in place by the inner rail and base-plate and which combined furnish a vertical and lateral stiffness and strength when placed upon sufficient tie-foundation equal to any part of a railroad track or rail.

hat I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination in a rail juncture of an inner rail, as herein described, a plate-floor with outside flanges as integral parts thereof, with end of rail having grooves on both sides of the end thereof to engage tongues on the end of the connecting-rail, and having central grooves in said rails to engage said inner rail, substantially as set forth herein.

2. The combination of arail having grooves 011 both sides at the end thereof and engaging the tongued end of connecting-rail, for the purposes specified.

3. The combination of an inner railhaving a plale-floor and outside flanges as integral parts thereof, with rails having side grooves and engaging tongues, and central grooves to engage saidinner rail, all for the purposes, as herein set forth.

JOSEPH M. GRISWOLD.

Witnesses:

WM. RALSTON BROWN, HOWARD B. BLooMnR. 

